.top{
    background: black;/*背景颜色黑色*/
    line-height: 40px;/*行高40px*/
    text-align: right;/*居右显示*/
    font-size: 20px;/*字体大小*/
}
a{
    text-decoration: none;/*去除下划线*/
    color: black;
}
.top a{
    color: white;
}

.tu{
    line-height:40px ;
}
/*左侧分享*/
.left{
    width:20% ;
    text-align: center;
    float: left;
}
.left img{
    width: 38px;
    height: 38px;
}
/*左侧文字*/
.left span{
    vertical-align: 50%;/*文字垂直居中对齐*/
}
.center{
    width: 60%;
    float: left;

}
.right{
    width: 20%;
    float: left;
}
.fooler{
    clear: both;
    background: blue;
    text-align:center;
    line-height: 25px;

}
/*底部颜色*/
.fooler a{
    color: white;
}
a:hover{
    color: red;
}